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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
import { INTERNAL, Module, MONO, runtimeHelpers } from "./imports";
import { toBase64StringImpl } from "./base64";
import cwraps from "./cwraps";
import { VoidPtr, CharPtr } from "./types/emscripten";
const commands_received : any = new Map<number, CommandResponse>();
const wasm_func_map = new Map<number, string>();
commands_received.remove = function (key: number) : CommandResponse { const value = this.get(key); this.delete(key); return value;};
let _call_function_res_cache: any = {};
let _next_call_function_res_id = 0;
let _debugger_buffer_len = -1;
let _debugger_buffer: VoidPtr;
let _assembly_name_str: string; //keep this variable, it's used by BrowserDebugProxy
let _entrypoint_method_token: number; //keep this variable, it's used by BrowserDebugProxy
const regexes:any[] = [];
// V8
// at <anonymous>:wasm-function[1900]:0x83f63
// at dlfree (<anonymous>:wasm-function[18739]:0x2328ef)
regexes.push(/at (?<replaceSection>[^:()]+:wasm-function\[(?<funcNum>\d+)\]:0x[a-fA-F\d]+)((?![^)a-fA-F\d])|$)/);
//# 5: WASM [009712b2], function #111 (''), pc=0x7c16595c973 (+0x53), pos=38740 (+11)
regexes.push(/(?:WASM \[[\da-zA-Z]+\], (?<replaceSection>function #(?<funcNum>[\d]+) \(''\)))/);
//# chrome
//# at http://127.0.0.1:63817/dotnet.wasm:wasm-function[8963]:0x1e23f4
regexes.push(/(?<replaceSection>[a-z]+:\/\/[^ )]*:wasm-function\[(?<funcNum>\d+)\]:0x[a-fA-F\d]+)/);
//# <?>.wasm-function[8962]
regexes.push(/(?<replaceSection><[^ >]+>[.:]wasm-function\[(?<funcNum>[0-9]+)\])/);
export function mono_wasm_runtime_ready(): void {
runtimeHelpers.mono_wasm_runtime_is_ready = true;
// FIXME: where should this go?
_next_call_function_res_id = 0;
_call_function_res_cache = {};
_debugger_buffer_len = -1;
// DO NOT REMOVE - magic debugger init function
if ((<any>globalThis).dotnetDebugger)
// eslint-disable-next-line no-debugger
debugger;
else
console.debug("mono_wasm_runtime_ready", "fe00e07a-5519-4dfe-b35a-f867dbaf2e28");
_readSymbolMapFile("dotnet.js.symbols");
}
export function mono_wasm_fire_debugger_agent_message(): void {
// eslint-disable-next-line no-debugger
debugger;
}
export function mono_wasm_add_dbg_command_received(res_ok: boolean, id: number, buffer: number, buffer_len: number): void {
const assembly_data = new Uint8Array(Module.HEAPU8.buffer, buffer, buffer_len);
const base64String = toBase64StringImpl(assembly_data);
const buffer_obj = {
res_ok,
res: {
id,
value: base64String
}
};
if (commands_received.has(id))
console.warn("Addind an id that already exists in commands_received");
commands_received.set(id, buffer_obj);
}
function mono_wasm_malloc_and_set_debug_buffer(command_parameters: string) {
if (command_parameters.length > _debugger_buffer_len) {
if (_debugger_buffer)
Module._free(_debugger_buffer);
_debugger_buffer_len = Math.max(command_parameters.length, _debugger_buffer_len, 256);
_debugger_buffer = Module._malloc(_debugger_buffer_len);
}
const byteCharacters = atob(command_parameters);
for (let i = 0; i < byteCharacters.length; i++) {
Module.HEAPU8[<any>_debugger_buffer + i] = byteCharacters.charCodeAt(i);
}
}
export function mono_wasm_send_dbg_command_with_parms(id: number, command_set: number, command: number, command_parameters: string, length: number, valtype: number, newvalue: number): CommandResponseResult {
mono_wasm_malloc_and_set_debug_buffer(command_parameters);
cwraps.mono_wasm_send_dbg_command_with_parms(id, command_set, command, _debugger_buffer, length, valtype, newvalue.toString());
const { res_ok, res } = commands_received.remove(id);
if (!res_ok)
throw new Error("Failed on mono_wasm_invoke_method_debugger_agent_with_parms");
return res;
}
export function mono_wasm_send_dbg_command(id: number, command_set: number, command: number, command_parameters: string): CommandResponseResult {
mono_wasm_malloc_and_set_debug_buffer(command_parameters);
cwraps.mono_wasm_send_dbg_command(id, command_set, command, _debugger_buffer, command_parameters.length);
const { res_ok, res } = commands_received.remove(id);
if (!res_ok)
throw new Error("Failed on mono_wasm_send_dbg_command");
return res;
}
export function mono_wasm_get_dbg_command_info(): CommandResponseResult {
const { res_ok, res } = commands_received.remove(0);
if (!res_ok)
throw new Error("Failed on mono_wasm_get_dbg_command_info");
return res;
}
export function mono_wasm_debugger_resume(): void {
//nothing
}
export function mono_wasm_detach_debugger(): void {
cwraps.mono_wasm_set_is_debugger_attached(false);
}
export function mono_wasm_change_debugger_log_level(level: number): void {
cwraps.mono_wasm_change_debugger_log_level(level);
}
/**
* Raises an event for the debug proxy
*/
export function mono_wasm_raise_debug_event(event: WasmEvent, args = {}): void {
if (typeof event !== "object")
throw new Error(`event must be an object, but got ${JSON.stringify(event)}`);
if (event.eventName === undefined)
throw new Error(`event.eventName is a required parameter, in event: ${JSON.stringify(event)}`);
if (typeof args !== "object")
throw new Error(`args must be an object, but got ${JSON.stringify(args)}`);
console.debug("mono_wasm_debug_event_raised:aef14bca-5519-4dfe-b35a-f867abc123ae", JSON.stringify(event), JSON.stringify(args));
}
// Used by the debugger to enumerate loaded dlls and pdbs
export function mono_wasm_get_loaded_files(): string[] {
return MONO.loaded_files;
}
export function mono_wasm_wait_for_debugger(): Promise<void> {
return new Promise<void>((resolve) => {
const interval = setInterval(() => {
if (runtimeHelpers.wait_for_debugger != 1) {
return;
}
clearInterval(interval);
resolve();
}, 100);
});
}
export function mono_wasm_debugger_attached(): void {
if (runtimeHelpers.wait_for_debugger == -1)
runtimeHelpers.wait_for_debugger = 1;
cwraps.mono_wasm_set_is_debugger_attached(true);
}
export function mono_wasm_set_entrypoint_breakpoint(assembly_name: CharPtr, entrypoint_method_token: number): void {
//keep these assignments, these values are used by BrowserDebugProxy
_assembly_name_str = Module.UTF8ToString(assembly_name).concat(".dll");
_entrypoint_method_token = entrypoint_method_token;
//keep this console.assert, otherwise optimization will remove the assigments
console.assert(true, `Adding an entrypoint breakpoint ${_assembly_name_str} at method token ${_entrypoint_method_token}`);
// eslint-disable-next-line no-debugger
debugger;
}
function _create_proxy_from_object_id(objectId: string, details: any) {
if (objectId.startsWith("dotnet:array:")) {
let ret: Array<any>;
if (details.items === undefined) {
ret = details.map ((p: any) => p.value);
return ret;
}
if (details.dimensionsDetails === undefined || details.dimensionsDetails.length === 1) {
ret = details.items.map((p: any) => p.value);
return ret;
}
}
const proxy: any = {};
Object.keys(details).forEach(p => {
const prop = details[p];
if (prop.get !== undefined) {
Object.defineProperty(proxy,
prop.name,
{
get() {
return mono_wasm_send_dbg_command(prop.get.id, prop.get.commandSet, prop.get.command, prop.get.buffer);
},
set: function (newValue) {
mono_wasm_send_dbg_command_with_parms(prop.set.id, prop.set.commandSet, prop.set.command, prop.set.buffer, prop.set.length, prop.set.valtype, newValue); return true;
}
}
);
} else if (prop.set !== undefined) {
Object.defineProperty(proxy,
prop.name,
{
get() {
return prop.value;
},
set: function (newValue) {
mono_wasm_send_dbg_command_with_parms(prop.set.id, prop.set.commandSet, prop.set.command, prop.set.buffer, prop.set.length, prop.set.valtype, newValue); return true;
}
}
);
} else {
proxy[prop.name] = prop.value;
}
});
return proxy;
}
export function mono_wasm_call_function_on(request: CallRequest): CFOResponse {
if (request.arguments != undefined && !Array.isArray(request.arguments))
throw new Error(`"arguments" should be an array, but was ${request.arguments}`);
const objId = request.objectId;
const details = request.details;
let proxy: any = {};
if (objId.startsWith("dotnet:cfo_res:")) {
if (objId in _call_function_res_cache)
proxy = _call_function_res_cache[objId];
else
throw new Error(`Unknown object id ${objId}`);
} else {
proxy = _create_proxy_from_object_id(objId, details);
}
const fn_args = request.arguments != undefined ? request.arguments.map(a => JSON.stringify(a.value)) : [];
const fn_body_template = `const fn = ${request.functionDeclaration}; return fn.apply(proxy, [${fn_args}]);`;
const fn_defn = new Function("proxy", fn_body_template);
const fn_res = fn_defn(proxy);
if (fn_res === undefined)
return { type: "undefined" };
if (Object(fn_res) !== fn_res) {
if (typeof (fn_res) == "object" && fn_res == null)
return { type: typeof (fn_res), subtype: `${fn_res}`, value: null };
return { type: typeof (fn_res), description: `${fn_res}`, value: `${fn_res}` };
}
if (request.returnByValue && fn_res.subtype == undefined)
return { type: "object", value: fn_res };
if (Object.getPrototypeOf(fn_res) == Array.prototype) {
const fn_res_id = _cache_call_function_res(fn_res);
return {
type: "object",
subtype: "array",
className: "Array",
description: `Array(${fn_res.length})`,
objectId: fn_res_id
};
}
if (fn_res.value !== undefined || fn_res.subtype !== undefined) {
return fn_res;
}
if (fn_res == proxy)
return { type: "object", className: "Object", description: "Object", objectId: objId };
const fn_res_id = _cache_call_function_res(fn_res);
return { type: "object", className: "Object", description: "Object", objectId: fn_res_id };
}
function _get_cfo_res_details(objectId: string, args: any): ValueAsJsonString {
if (!(objectId in _call_function_res_cache))
throw new Error(`Could not find any object with id ${objectId}`);
const real_obj = _call_function_res_cache[objectId];
const descriptors = Object.getOwnPropertyDescriptors(real_obj);
if (args.accessorPropertiesOnly) {
Object.keys(descriptors).forEach(k => {
if (descriptors[k].get === undefined)
Reflect.deleteProperty(descriptors, k);
});
}
const res_details: any[] = [];
Object.keys(descriptors).forEach(k => {
let new_obj;
const prop_desc = descriptors[k];
if (typeof prop_desc.value == "object") {
// convert `{value: { type='object', ... }}`
// to `{ name: 'foo', value: { type='object', ... }}
new_obj = Object.assign({ name: k }, prop_desc);
} else if (prop_desc.value !== undefined) {
// This is needed for values that were not added by us,
// thus are like { value: 5 }
// instead of { value: { type = 'number', value: 5 }}
//
// This can happen, for eg., when `length` gets added for arrays
// or `__proto__`.
new_obj = {
name: k,
// merge/add `type` and `description` to `d.value`
value: Object.assign({ type: (typeof prop_desc.value), description: "" + prop_desc.value },
prop_desc)
};
} else if (prop_desc.get !== undefined) {
// The real_obj has the actual getter. We are just returning a placeholder
// If the caller tries to run function on the cfo_res object,
// that accesses this property, then it would be run on `real_obj`,
// which *has* the original getter
new_obj = {
name: k,
get: {
className: "Function",
description: `get ${k} () {}`,
type: "function"
}
};
} else {
new_obj = { name: k, value: { type: "symbol", value: "<Unknown>", description: "<Unknown>" } };
}
res_details.push(new_obj);
});
return { __value_as_json_string__: JSON.stringify(res_details) };
}
type ValueAsJsonString = {
__value_as_json_string__: string;
}
export function mono_wasm_get_details(objectId: string, args = {}): ValueAsJsonString {
return _get_cfo_res_details(`dotnet:cfo_res:${objectId}`, args);
}
function _cache_call_function_res(obj: any) {
const id = `dotnet:cfo_res:${_next_call_function_res_id++}`;
_call_function_res_cache[id] = obj;
return id;
}
export function mono_wasm_release_object(objectId: string): void {
if (objectId in _call_function_res_cache)
delete _call_function_res_cache[objectId];
}
export function mono_wasm_debugger_log(level: number, message_ptr: CharPtr): void {
const message = Module.UTF8ToString(message_ptr);
if (INTERNAL["logging"] && typeof INTERNAL.logging["debugger"] === "function") {
INTERNAL.logging.debugger(level, message);
return;
}
console.debug(`Debugger.Debug: ${message}`);
}
function _readSymbolMapFile(filename: string): void {
try {
const res = Module.FS_readFile(filename, {flags: "r", encoding: "utf8"});
res.split(/[\r\n]/).forEach((line: string) => {
const parts:string[] = line.split(/:/);
if (parts.length < 2)
return;
parts[1] = parts.splice(1).join(":");
wasm_func_map.set(Number(parts[0]), parts[1]);
});
console.debug(`Loaded ${wasm_func_map.size} symbols`);
} catch (error:any) {
if (error.errno == 44) // NOENT
console.debug(`Could not find symbols file ${filename}. Ignoring.`);
else
console.log(`Error loading symbol file ${filename}: ${JSON.stringify(error)}`);
return;
}
}
export function mono_wasm_symbolicate_string(message: string): string {
try {
if (wasm_func_map.size == 0)
return message;
const origMessage = message;
for (let i = 0; i < regexes.length; i ++)
{
const newRaw = message.replace(new RegExp(regexes[i], "g"), (substring, ...args) => {
const groups = args.find(arg => {
return typeof(arg) == "object" && arg.replaceSection !== undefined;
});
if (groups === undefined)
return substring;
const funcNum = groups.funcNum;
const replaceSection = groups.replaceSection;
const name = wasm_func_map.get(Number(funcNum));
if (name === undefined)
return substring;
return substring.replace(replaceSection, `${name} (${replaceSection})`);
});
if (newRaw !== origMessage)
return newRaw;
}
return origMessage;
} catch (error) {
console.debug(`failed to symbolicate: ${error}`);
return message;
}
}
export function mono_wasm_stringify_as_error_with_stack(err: Error | string): string {
let errObj: any = err;
if (!(err instanceof Error))
errObj = new Error(err);
// Error
return mono_wasm_symbolicate_string(errObj.stack);
}
export function mono_wasm_trace_logger(log_domain_ptr: CharPtr, log_level_ptr: CharPtr, message_ptr: CharPtr, fatal: number, user_data: VoidPtr): void {
const origMessage = Module.UTF8ToString(message_ptr);
const isFatal = !!fatal;
const domain = Module.UTF8ToString(log_domain_ptr);
const dataPtr = user_data;
const log_level = Module.UTF8ToString(log_level_ptr);
const message = `[MONO] ${origMessage}`;
if (INTERNAL["logging"] && typeof INTERNAL.logging["trace"] === "function") {
INTERNAL.logging.trace(domain, log_level, message, isFatal, dataPtr);
return;
}
switch (log_level) {
case "critical":
case "error":
console.error(mono_wasm_stringify_as_error_with_stack(message));
break;
case "warning":
console.warn(message);
break;
case "message":
console.log(message);
break;
case "info":
console.info(message);
break;
case "debug":
console.debug(message);
break;
default:
console.log(message);
break;
}
}
export function setup_proxy_console(id: string, originalConsole: Console, origin: string): void {
function proxyConsoleMethod(prefix: string, func: any, asJson: boolean) {
return function (...args: any[]) {
try {
let payload = args[0];
if (payload === undefined) payload = "undefined";
else if (payload === null) payload = "null";
else if (typeof payload === "function") payload = payload.toString();
else if (typeof payload !== "string") {
try {
payload = JSON.stringify(payload);
} catch (e) {
payload = payload.toString();
}
}
if (typeof payload === "string")
payload = `[${id}] ${payload}`;
if (asJson) {
func(JSON.stringify({
method: prefix,
payload: payload,
arguments: args
}));
} else {
func([prefix + payload, ...args.slice(1)]);
}
} catch (err) {
originalConsole.error(`proxyConsole failed: ${err}`);
}
};
}
const originalConsoleObj : any = originalConsole;
const methods = ["debug", "trace", "warn", "info", "error"];
for (const m of methods) {
if (typeof (originalConsoleObj[m]) !== "function") {
originalConsoleObj[m] = proxyConsoleMethod(`console.${m}: `, originalConsole.log, false);
}
}
const consoleUrl = `${origin}/console`.replace("https://", "wss://").replace("http://", "ws://");
const consoleWebSocket = new WebSocket(consoleUrl);
consoleWebSocket.onopen = function () {
originalConsole.log(`browser: [${id}] Console websocket connected.`);
};
consoleWebSocket.onerror = function (event) {
originalConsole.error(`[${id}] websocket error: ${event}`, event);
};
consoleWebSocket.onclose = function (event) {
originalConsole.error(`[${id}] websocket closed: ${event}`, event);
};
const send = (msg: string) => {
if (consoleWebSocket.readyState === WebSocket.OPEN) {
consoleWebSocket.send(msg);
}
else {
originalConsole.log(msg);
}
};
// redirect output early, so that when emscripten starts it's already redirected
for (const m of ["log", ...methods])
originalConsoleObj[m] = proxyConsoleMethod(`console.${m}`, send, true);
}
type CallDetails = {
value: string
}
type CallArgs = {
value: string
}
type CallRequest = {
arguments: undefined | Array<CallArgs>,
objectId: string,
details: CallDetails[],
functionDeclaration: string
returnByValue: boolean,
}
type WasmEvent = {
eventName: string, // - name of the event being raised
[i: string]: any, // - arguments for the event itself
}
type CommandResponseResult = {
id: number,
value: string
}
type CommandResponse = {
res_ok: boolean,
res: CommandResponseResult
};
type CFOResponse = {
type: string,
subtype?: string,
value?: string | null,
className?: string,
description?: string,
objectId?: string
}
|